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How heavy is the men and women’s javelin at the Olympics?

Javelin was first incorporated into the Olympic Games in 708 BC as part of the pentathlon. The men’s javelin must weigh 800g and be 2.6m-2.7m long while the women’s javelin must weigh 600g and be 2.2m-2.3m long. Javelin spears were made of solid wood with a steel tip for a long time. The hollow, highly aerodynamic javelin was introduced in the 1950s. It has been part of the modern Olympic Games programme since 1908 for men and 1932 for women.